An amusing item, but diners and their expectations vary a great deal. One person may like to have their glass constantly topped up and another may want to pour it themselves. Me I don't mind, but the one thing I really dislike is if there is no waiter around and I decide to pour it myself, then suddenly someone rushes over and snatches it from me and says "I'll do that sir" I find that rude and patronising, as if I have behaved improperly in their restaurant. Having said that, remember that they all want to sell as much wine as possible, it is far more lucrative than food!